Медный цилиндр массой 1,78 кг опущен в бензин. плотность бензина 710 кг/м3. 1.вычислите объём вытесненного им бензина. 2. вычислите архимедову силу, действующую на этот цилиндр.
lyntik228
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21.05.2019 00:10
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объем вытесненного бензина равен объему меди
V=m/p=1.78/8900=0.0002метра^3;
F=pgv=710*9.8*0.0002=1.3916н/кг или 1,42н/кг, если ускорение свободногоо падения прировнять к 10